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| author | John Wehle <john@feith.com> | 2000-09-10 18:25:49 +0000 |
|---|---|---|
| committer | John Wehle <wehle@gcc.gnu.org> | 2000-09-10 18:25:49 +0000 |
| commit | d982e46e1c8ec6ed6ab7afc51c7390788edaa0e6 (patch) | |
| tree | 7eefe19dc8865370e7ecf0dc3bfec84f34941058 | |
| parent | 212d447c7fbeed4cf515089d5c67fc6caaa34c45 (diff) | |
| download | gcc-d982e46e1c8ec6ed6ab7afc51c7390788edaa0e6.zip gcc-d982e46e1c8ec6ed6ab7afc51c7390788edaa0e6.tar.gz gcc-d982e46e1c8ec6ed6ab7afc51c7390788edaa0e6.tar.bz2 | |
alias.c (find_base_term): Handle ADDRESSOF.
* alias.c (find_base_term): Handle ADDRESSOF.
(memrefs_conflict_p): An ADDRESSOF doesn't conflict.
From-SVN: r36300
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/alias.c | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8c714e1..553741d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Sun Sep 10 14:30:28 EDT 2000 John Wehle (john@feith.com) + + * alias.c (find_base_term): Handle ADDRESSOF. + (memrefs_conflict_p): An ADDRESSOF doesn't conflict. + 2000-09-10 Denis Chertykov <denisc@overta.ru> * genoutput.c (output_insn_data): Translate <NEWLINE> to \n\ while diff --git a/gcc/alias.c b/gcc/alias.c index cb5a636..b17296b 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -1131,6 +1131,9 @@ find_base_term (x) case LABEL_REF: return x; + case ADDRESSOF: + return REG_BASE_VALUE (stack_pointer_rtx); + default: return 0; } @@ -1454,6 +1457,9 @@ memrefs_conflict_p (xsize, x, ysize, y, c) return memrefs_conflict_p (xsize, x, ysize, XEXP (y, 0), c); } + if (GET_CODE (x) == ADDRESSOF || GET_CODE (y) == ADDRESSOF) + return xsize <= 0 || ysize <= 0; + if (CONSTANT_P (x)) { if (GET_CODE (x) == CONST_INT && GET_CODE (y) == CONST_INT) |